j.kenzie@sbcglobal.net

Hi guys,
I have an extra vacuum connection port on my 84 US automatic throttle body. It is on the front passenger side and is a pipe nipple that sticks up about 3/4" vertically about 1/2" diameter. I put a cap over it for now, but don't remember what was there. Also, can't get a good picture without removing spider again.
Any L-jet throttle body pictures or diagrams appreciated.
Sorry, and thanks,
Dave

Mikebte

I have a few from when I redid my lines. Not sure if it help point anything out. Photos from the back and one looking to the back from the pass side.

Also the Vacuum diagram under the hood.

Please pay no attention to the dirt. Top end refresh will come some day.

j.kenzie@sbcglobal.net

Thanks. That's close but not quite it. I can just see a thick black hose at the top right of the second picture. Any idea where it goes. Also not sure of model changes from yours to 84.
Thanks for posting,
Dave

Mikebte

I hate to be one to guess. Hope this helps

Mikebte

Sorry, wrong photo. This is an 84. Are we talking about the air regulator, maybe?

j.kenzie@sbcglobal.net

Thanks again Mike.
In your diagram, if you fine the label "P", and go to the right, you'll see a circle on the throttle body. This indicates a vertical nipple (similar to the rear one for the AAV). There is no connection indicated for that nipple and that's the one I was asking about.
I appreciate your help.
Dave

Mikebte

I have been working out of town the last few weeks, and somehow my Pen drive with 928 manuals got in the bag.

Looks like a smog related item.

Hold On

Isn`t that port where the vent hose from the oil fill/seperator canister drops back into the engine?? Its a different diameter at each end. Larger at the canister side.